With its glossy green leaves and perfectly shaped, exquisitely fragrant pure, white flowers, it could only be a gardenia. Gardenias are some of the more popular flowering shrubs but they never seem to flower as much as we'd like them to. For a start, it's important to be patient: gardenia flowers consistently is consistently warm. For more information on growing, and caring for gardenias, such that they'll grow well, watch this gardenia flower how-to.